Push button switch



FIG. 1 is a front view of the push button switch showing my new design;

FIG. 2 is a rear view of the push button switch;

FIG. 3 is a plan view of the push button switch as seen from the top;

FIG. 4 is a view of the push button switch as seen from the bottom;

FIG. 5 is a view of the push button switch as seen from the left;

FIG. 6 is a view of the switch push button as seen from the right;

FIG. 7 is an enlarged cross-sectional view of the push button switch taken along line 7--7 of FIG. 3. 

The ornamental design for a push button switch, substantially as shown and described. 